The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2001
Filed:
Feb. 18, 2000
Yuji Tanaka, Osaka, JP;
Hirofumi Kawaguchi, Osaka, JP;
Kyocera Mita Corporation, Osaka, JP;
Abstract
With the object of providing an imaging method that eliminates the occurrence of transfer ghosts, saves space and lowers costs, and by which image density irregularities do not arise, an imaging method utilized in a reverse-transfer system is disclosed. The reverse-transfer system is provided with, in order going round a photosensitive conductor,, at least a main-charging stage,, an exposure stage,, a reverse-developing stage,, a transfer stage,, a separation stage,and a charge-stripping stage,. The separation stage,applies a separation shift-bias voltage to the photosensitive conductor,surface. The separation shift-bias voltage is 1 kV or more, and is of the same polarity as that of the main-charging voltage that the main-charging stage,applies to the photosensitive conductor,surface. Making the separation shift-bias voltage 1 kV or more prevents transfer ghosts, and obtains images with a satisfactory absence of image density irregularities.